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Finding the Fourth Proportional to 602,507.40, 903,501.90 and 302,872.20

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Solution

The fourth proportional to 602,507.40, 903,501.90 and 302,872.20 is: 454,178.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,507.40 : 903,501.90 = 302,872.20 : x
  2. Step 2: Convert to fraction form
    602,507.40/903,501.90 = 302,872.20/x
  3. Step 3: Cross multiply
    602,507.40x = 903,501.90 × 302,872.20
  4. Step 4: Simplify right side
    602,507.40x = 273,645,608,157.18
  5. Step 5: Solve for x
    x = 273,645,608,157.18/602,507.40
  6. Step 6: Final answer
    x = 454,178.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.